3results about How to "Improve dye uptake" patented technology

The invention discloses a garment tie-dyeing process based on natural plant dye, and relates to the technical field of garment tie-dyeing, the garment tie-dyeing process comprises dye collection and preparation and garment pretreatment, during dye collection and preparation, natural plants are selected according to dyeing requirements, and the selected natural plants are treated; the ready-to-wear garment pretreatment is used for pretreating ready-to-wear garments to be tie-dyed. According to the method, the natural plant dye is extracted through synergistic use of an enzymolysis method and ultrasonic-microwave, plant cell walls are destroyed from internal and external aspects, the extraction efficiency of the dye is greatly improved, pigment components in plants can be extracted more sufficiently, more completely and more uniformly through the synergistic extraction mode, and the extraction efficiency of the dye is improved. The problem of incomplete pigment extraction possibly caused by a single extraction method is avoided, so that the extracted dye is fuller and purer in color and more stable in hue, meanwhile, the binding force between the dye and fabric fibers is favorably improved, and the color fastness to rubbing and the color fastness to washing of the dyed fabric are further enhanced.

This invention discloses a precursor of a monochlorotriazine halogen amine antibacterial agent for low-temperature, low-salt finishing, its preparation method, and a cotton fabric and finishing method thereof. The precursor incorporates a 5,5-dimethylhydantoin derivative group linked by a hydrophilic group of sodium p-benzenesulfonate and an ether bond, and is prepared by a temperature- and pH-controlled reaction of cyanuric chloride with sodium p-aminobenzenesulfonate and 3-(3-chloro-2-hydroxypropyl)-5,5-dimethylhydantoin. The cotton fabric finishing process involves precursor dissolution, neutral salt impregnation, low-temperature weak alkali grafting, and chlorination. The process includes impregnation at 25-40°C and alkali reaction at 15-35°C, with a neutral salt concentration of 20-60 g / L and an alkali concentration of 0.5-2 g / L. The precursor has excellent water solubility and fiber compatibility. The finishing process inhibits hydrolysis and reduces energy consumption. The treated cotton fabric has a kill rate of over 99.99% against Staphylococcus aureus and Escherichia coli within 1 minute. After 50 washes, the active chlorine recovery rate exceeds 80%. It has high strength retention, is energy-saving, environmentally friendly and easy to industrialize.

The invention discloses electron beam silicon modified coloring particles as well as a preparation method and application thereof, and belongs to the technical field of textile printing and dyeing. Coloring particles are formed by taking a micromolecular dye or pigment as a core and taking a polymer capable of being cured by electron beam radiation as a shell, and a textile base material is subjected to padding dyeing by using a coloring dye liquor prepared from the coloring particles. A silicon-modified monomer is used for modifying the fabric, the fabric is endowed with soft and breathable performance, carboxyl groups are introduced into a shell layer, cationic dye is adsorbed, the dye-uptake of the dye is increased, and high color depth is achieved. The method has the characteristics of high curing speed and low energy consumption, solves the problems that the traditional textile coloring and curing process is long, the energy consumption is high, the photocuring coloring technology is limited by the penetrating power of light, and a colored system is difficult to cure, realizes the problems of high color depth and soft hand feeling, and solves the problem of application of electron beam curing to textiles.